Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hieu manh » chieu xanh, hieu nganh, dieu hanh
nhung don » nhung van, nhung bo
hang cong » dang cong, hang nong, bang cong
thanh hac » thanh hai, thanh bac, thanh cac
doc hieu » toc thieu, hoc thieu, hoc hien
thanh ha » thanh hoa, thanh hai, nhanh ha

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu manh - hanh trinh luat ((nhung don) or (hang cong)) dan ((thanh ha) or (thanh hac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu manh - hanh trinh luat ((nhung don) OR (hang cong)) dan ((thanh ha) OR (thanh hac)).
• Adding a wildcard symbol may retrieve word variants: doc hieu manh - hanh trinh luat ((nhung don) or (hang cong)) dan ((thanh ha) or (thanh hac))*.